我认为快乐是多种多样的，而且是千变万化的。

In my view, happiness can appear in thousands of forms and it forever changes.

youdao

我在第一周大家认为是乐观和快乐。

I think in the first weeks everybody was optimistic and happy.

youdao

我坚持认为感谢是思想的最高形式，感激是奇迹般倍增的快乐。

I would maintain that thanks are the highest form of thought, and that gratitude is happiness doubled by wonder.

youdao

Why? Because there's more to life than just pleasure and the absence of pain, or so it seems to me.

为什么？因为生命不仅仅是,享受快乐，避免痛苦，我是这样认为。

耶鲁公开课 - 死亡课程节选

Second, because I think it is one of the most important pillars of wellbeing and happiness.

第二，因为我认为它是,快乐和幸福的最重要支柱之一。

哈佛公开课 - 幸福课课程节选

It's not that I think pleasure isn't good and pain isn't bad.

我并非认为快乐是坏的，痛苦是好的。

耶鲁公开课 - 死亡课程节选